Index: trunk/test/unit/org/openstreetmap/josm/data/osm/search/SearchSettingTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/osm/search/SearchSettingTest.java	(revision 18600)
+++ trunk/test/unit/org/openstreetmap/josm/data/osm/search/SearchSettingTest.java	(revision 18600)
@@ -0,0 +1,53 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.data.osm.search;
+
+import static org.junit.jupiter.api.Assertions.assertAll;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import nl.jqno.equalsverifier.EqualsVerifier;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Test class for {@link SearchSetting}
+ */
+class SearchSettingTest {
+    /**
+     * Check that equality and hashCode meet specifications.
+     */
+    @Test
+    void testEqualsHashcode() {
+        EqualsVerifier.simple().forClass(SearchSetting.class).verify();
+    }
+
+    /**
+     * The hashCode return is used for shortcut preferences (see #22515 for details).
+     * As such, the hashCode must be stable between JVM restarts.
+     * <br>
+     * Note: The hashCode of enums <i>are not stable</i> across JVM restarts, as they
+     * <i>must</i> use the default hashCode (which is usually {@link System#identityHashCode(Object)}),
+     * This tends to be fairly stable in JUnit tests, but is not stable in the real world!
+     */
+    @Test
+    void testStableHashcode() {
+        SearchSetting testWayReplace = new SearchSetting();
+        testWayReplace.text = "type:way";
+        testWayReplace.mode = SearchMode.replace;
+        SearchSetting testWayAdd = new SearchSetting(testWayReplace);
+        testWayAdd.mode = SearchMode.add;
+        SearchSetting testWayNull = new SearchSetting(testWayReplace);
+        testWayNull.mode = null;
+        SearchSetting testNodeReplace = new SearchSetting(testWayReplace);
+        SearchSetting testNodeAdd = new SearchSetting(testWayAdd);
+        SearchSetting testNodeNull = new SearchSetting(testWayNull);
+        testNodeReplace.text = "type:node";
+        testNodeAdd.text = "type:node";
+        testNodeNull.text = "type:node";
+        assertAll(() -> assertEquals(837851780, testWayReplace.hashCode()),
+                () -> assertEquals(822151923, testWayAdd.hashCode()),
+                () -> assertEquals(762123058, testWayNull.hashCode()),
+                () -> assertEquals(-620395823, testNodeReplace.hashCode()),
+                () -> assertEquals(-636095680, testNodeAdd.hashCode()),
+                () -> assertEquals(-696124545, testNodeNull.hashCode())
+                );
+    }
+}